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郭小伟, 苏致兴. 流动注射在线罗丹宁纤维预浓集快速测定地质样品中痕量金[J]. 岩矿测试, 1993, (4): 241-245.
引用本文: 郭小伟, 苏致兴. 流动注射在线罗丹宁纤维预浓集快速测定地质样品中痕量金[J]. 岩矿测试, 1993, (4): 241-245.
Flow Injection On-Line Preconcentration with Rhodanine Chelating Fibre for the Determination of Trace Gold in Geological Samples by Flame AAS[J]. Rock and Mineral Analysis, 1993, (4): 241-245.
Citation: Flow Injection On-Line Preconcentration with Rhodanine Chelating Fibre for the Determination of Trace Gold in Geological Samples by Flame AAS[J]. Rock and Mineral Analysis, 1993, (4): 241-245.

流动注射在线罗丹宁纤维预浓集快速测定地质样品中痕量金

Flow Injection On-Line Preconcentration with Rhodanine Chelating Fibre for the Determination of Trace Gold in Geological Samples by Flame AAS

  • 摘要: 应用流动注射在线罗丹宁纤维预集火焰原子吸收法快速测定地质样品中痕量金。选用微型细柱,内装有新型螯合罗丹宁纤维,在20%王水质中,样品流速为7.9ml/min,上柱40s;用0.025%硫脲就可洗脱,洗脱液流速为2.6ml/min,分析速度为60N/h,浓集倍数为25(浓集效率为25EF/mim)。对于0.20μg/ml Au测定21次,RSO为1.9%。方法检出限(3σ)为0.001μg/ml A

     

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